cybernetic UK /ˌsaɪbə(ɹ)ˈnɛtɪk/US /ˌsaɪbɚˈnɛtɪk/ adjective2 •Of or relating to cybernetics—the mathematical study of communication and control in living organisms or machines. •Of or relating to computers and the Internet. formsmore cybernetic · most cybernetic